Non-thinking (no chain-of-thought) variant of
tuandunghcmut/nvidia_instruction_following_if_split_v3,
which is itself the instruction_following split of
nvidia/Nemotron-SFT-Instruction-Following-Chat-v3.
The reasoning_content field has been fully removed from every message (not just nulled) — each message
now only has role and content. This is intended for training/evaluation setups that do not use
chain-of-thought / reasoning traces.
